(Solved): A Solid Circular Shaft 31 Mm In Diameter Is Experiencing Fluctuating Bending Moment And Torque (in ...
A solid circular shaft 31 mm in diameter is experiencing
fluctuating bending moment and torque (in phase) as shown in the
graph below. For the shaft, Sut = 700 MPa and Sy = 560 MPa, and a
fully corrected endurance limit of Se = 210 MPa is assumed. Let Kf
= 1.2 and Kfs = 1.65. Determine the factor of safety guarding
against fatigue using Modified Goodman criteria.

Question 1 (50 Points) A solid circular shaft 31 mm in diameter is experiencing fluctuating bending moment and torque as shown in Figure 1. For the shaft, S-700 MPa and S, -560 MPa, and a fully corrected endurance limit of S-210 MPa is assumed. Let -1.2 and K. - 1.65. Determine the factor of safety guarding against fatigue using DE-Modified Goodman Figure